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Cutting force: formula
- Thread starter drir
- Start date
- Thread starter
- #3
hi
See page 6,7 of this link for cutting for cutting forces:-
Are you sure you want the cutting force or do you want the speed and feeds etc for cutting your material, if the latter is the case then do a Google search.
desertfox
See page 6,7 of this link for cutting for cutting forces:-
Are you sure you want the cutting force or do you want the speed and feeds etc for cutting your material, if the latter is the case then do a Google search.
desertfox
- Thread starter
- #5
page 7
torque= Fc X D(avg)/2
The torque you get from the power of your lathe depending on rpm of the chuck.
on page 7 Fc = cutting force
this is a copy of page 7:-
TABLE 22.3
N = Rotational speed of the workpiece, rpm
f = Feed, mm/rev or in/rev
v = Feed rate, or linear speed of the tool along workpiece length, mm/min or in/min
=fN
V = Surface speed of workpiece, m/min or ft/min
= π Do N (for maximum speed)
= π Davg N (for average speed)
l = Length of cut, mm or in.
Do = Original diameter of workpiece, mm or in.
Df = Final diameter of workpiece, mm or in.
Davg = Average diameter of workpiece, mm or in.
= (Do +Df ) /2
d = Depth of cut, mm or in.
= ( Do +Df ) /2
t = Cutting time, s or min
=l/f N
MRR = mm3/min or in3/min
= π Davg d fN
Torque = Nm or lb ft
= ( Fc )( Davg /2 )
Power = kW or hp
= (Torque) (w , where w=2π radians/min
torque= Fc X D(avg)/2
The torque you get from the power of your lathe depending on rpm of the chuck.
on page 7 Fc = cutting force
this is a copy of page 7:-
TABLE 22.3
N = Rotational speed of the workpiece, rpm
f = Feed, mm/rev or in/rev
v = Feed rate, or linear speed of the tool along workpiece length, mm/min or in/min
=fN
V = Surface speed of workpiece, m/min or ft/min
= π Do N (for maximum speed)
= π Davg N (for average speed)
l = Length of cut, mm or in.
Do = Original diameter of workpiece, mm or in.
Df = Final diameter of workpiece, mm or in.
Davg = Average diameter of workpiece, mm or in.
= (Do +Df ) /2
d = Depth of cut, mm or in.
= ( Do +Df ) /2
t = Cutting time, s or min
=l/f N
MRR = mm3/min or in3/min
= π Davg d fN
Torque = Nm or lb ft
= ( Fc )( Davg /2 )
Power = kW or hp
= (Torque) (w , where w=2π radians/min
No formulas but it gives you the forces,
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